CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenue	$ 43,243	$ 88,795	$ 139,749	$ 305,581
Cost of revenue	40,667	72,570	134,862	249,779
Gross profit	2,576	16,225	4,887	55,802
Operating expenses:
Selling, general and administrative expenses	16,604	20,812	52,046	73,606
Restructuring charges	0	2,227	0	10,921
Loss from operations	(14,028)	(6,814)	(47,159)	(28,725)
Other income (expense), net
Interest expense	(3,755)	(4,103)	(10,672)	(13,265)
Unrealized gain (loss) on investment in equity securities	0	138	0	(12,433)
Other (expense) income, net	(115)	(361)	791	412
Total other income (expense), net	(3,870)	(4,326)	(9,881)	(25,286)
Loss before income taxes and non-controlling interests	(17,898)	(11,140)	(57,040)	(54,011)
Income tax provision	(430)	(1,757)	(1,857)	(5,295)
Net loss	(18,328)	(12,897)	(58,897)	(59,306)
Net loss (income) attributable to non-controlling interests	59	(340)	151	(642)
Net loss attributable to Altisource	$ (18,269)	$ (13,237)	$ (58,746)	$ (59,948)
Earnings Per Share [Abstract]
Basic (in usd per share)	$ (1.15)	$ (0.85)	$ (3.71)	$ (3.85)
Diluted (in usd per share)	$ (1.15)	$ (0.85)	$ (3.71)	$ (3.85)
Weighted average shares outstanding:
Basic (in shares)	15,831	15,637	15,816	15,578
Diluted (in shares)	15,831	15,637	15,816	15,578
Comprehensive loss:
Comprehensive loss, net of tax	$ (18,328)	$ (12,897)	$ (58,897)	$ (59,306)
Comprehensive loss (income) attributable to non-controlling interests	59	(340)	151	(642)
Comprehensive loss attributable to Altisource	$ (18,269)	$ (13,237)	$ (58,746)	$ (59,948)